package com.qk.mapper;

import com.qk.entity.Course;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Select;

import java.util.List;

@Mapper
public interface CourseMapper {


    @Insert("insert into course(subject,name,price,target,description,create_time,update_time) values" +
            "(#{subject},#{name},#{price},#{target},#{description},#{createTime},#{updateTime})")
    void insert(Course course);
    @Delete("delete from course where id= #{id}")
    void deleteById(Integer id);

    void update(Course  course);

    @Select("select id, subject, name, price, target, description, create_time, update_time from course where id= #{id}")
    Course selectById(Integer id);

//    @Select("select id, subject, name, price, target, description, create_time, update_time from course")
    List<Course> selectList(String name, Integer subject, Integer price, Integer target, String description);

    //查询所有
    @Select("select id, subject, name, price, target, description, create_time, update_time from course")
    List<Course> selectAll();

    @Select("select id, subject, name, price, target, description, create_time, update_time from course where subject= #{subject}")
    List<Course> listBySubject(Integer subject);

}
